AC3D is a well established, fully featured 3D modeling package. It features an easy to use interface, powerful polygon and vertex editing, a UV mapper, 2D/3D text, and subdivision surfaces. It supports many 3D file formats.

Achilles is a simulation of Darwinian evolution in a virtual world composed of virtual organisms. It uses Hebbian neural networks, and an extremely simplified physics model that allows virtual organisms to interact freely in the simulated environment.

AIPS (Astronomical Information Processing System) handles the processing and display of data from radio interferometers. Data can be collected from any radio telescope array. Images can be exported in FITS format.

The Alamin GSM SMS Gateway is a group of daemons that allows you to send/receive SMS messages from any GSM device that supports AT+ commands (GSM modems or GSM mobile phones) or supported by Gnokii. A client program allows you to send messages from any IP client. An SMTP interface is provided to allow MTAs to send SMS directly to the GSM network. IMP (Incoming Message Processor) modules allows you to extend functionality to implement banking, network administration, bd querys, etc. from a GSM mobile phone.

AMMP (another molecular mechanics program) is a full-featured molecular modeling package. Notable features include the use of the fast multipole method for calculations using all pairs of atoms, stiffly stable dynamics, embedding and other strategies for robust building of model structures from limited data.

A+ is a powerful and efficient programming language. It embodies a rich set of functions and operators, a modern GUI with many widgets and automatic synchronization of widgets and variables, asynchronous execution of functions associated with variables and events, dynamic loading of user compiled subroutines, and many other features. Execution is by a rather efficient interpreter.

as-gps contains a basic support library for accessing the inexpensive ($20) Aisin-Seiki GPS Module previously available at mavin.com. The package also includes several simple console utilities for dumping satellite status, location, and time and for synchronizing the system clock.